diff options
Diffstat (limited to 'external/libcurl_android/jni/libcurl/lib/krb5.c')
| -rwxr-xr-x | external/libcurl_android/jni/libcurl/lib/krb5.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/external/libcurl_android/jni/libcurl/lib/krb5.c b/external/libcurl_android/jni/libcurl/lib/krb5.c deleted file mode 100755 index 7e82a680..00000000 --- a/external/libcurl_android/jni/libcurl/lib/krb5.c +++ /dev/null @@ -1,342 +0,0 @@ -/* GSSAPI/krb5 support for FTP - loosely based on old krb4.c - * - * Copyright (c) 1995, 1996, 1997, 1998, 1999, 2013 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * Copyright (c) 2004 - 2012 Daniel Stenberg - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. */ - -#include "curl_setup.h" - -#ifndef CURL_DISABLE_FTP -#ifdef HAVE_GSSAPI - -#ifdef HAVE_OLD_GSSMIT -#define GSS_C_NT_HOSTBASED_SERVICE gss_nt_service_name -#define NCOMPAT 1 -#endif - -#ifdef HAVE_NETDB_H -#include <netdb.h> -#endif - -#include "urldata.h" -#include "curl_base64.h" -#include "ftp.h" -#include "curl_gssapi.h" -#include "sendf.h" -#include "curl_sec.h" -#include "curl_memory.h" -#include "warnless.h" - -#define _MPRINTF_REPLACE /* use our functions only */ -#include <curl/mprintf.h> - -/* The last #include file should be: */ -#include "memdebug.h" - -#define LOCAL_ADDR (&conn->local_addr) -#define REMOTE_ADDR conn->ip_addr->ai_addr - -static int -krb5_init(void *app_data) -{ - gss_ctx_id_t *context = app_data; - /* Make sure our context is initialized for krb5_end. */ - *context = GSS_C_NO_CONTEXT; - return 0; -} - -static int -krb5_check_prot(void *app_data, int level) -{ - (void)app_data; /* unused */ - if(level == PROT_CONFIDENTIAL) - return -1; - return 0; -} - -static int -krb5_decode(void *app_data, void *buf, int len, - int level UNUSED_PARAM, - struct connectdata *conn UNUSED_PARAM) -{ - gss_ctx_id_t *context = app_data; - OM_uint32 maj, min; - gss_buffer_desc enc, dec; - - (void)level; - (void)conn; - - enc.value = buf; - enc.length = len; - maj = gss_unseal(&min, *context, &enc, &dec, NULL, NULL); - if(maj != GSS_S_COMPLETE) { - if(len >= 4) - strcpy(buf, "599 "); - return -1; - } - - memcpy(buf, dec.value, dec.length); - len = curlx_uztosi(dec.length); - gss_release_buffer(&min, &dec); - - return len; -} - -static int -krb5_overhead(void *app_data, int level, int len) -{ - /* no arguments are used */ - (void)app_data; - (void)level; - (void)len; - return 0; -} - -static int -krb5_encode(void *app_data, const void *from, int length, int level, void **to, - struct connectdata *conn UNUSED_PARAM) -{ - gss_ctx_id_t *context = app_data; - gss_buffer_desc dec, enc; - OM_uint32 maj, min; - int state; - int len; - - /* shut gcc up */ - conn = NULL; - - /* NOTE that the cast is safe, neither of the krb5, gnu gss and heimdal - * libraries modify the input buffer in gss_seal() - */ - dec.value = (void*)from; - dec.length = length; - maj = gss_seal(&min, *context, - level == PROT_PRIVATE, - GSS_C_QOP_DEFAULT, - &dec, &state, &enc); - - if(maj != GSS_S_COMPLETE) - return -1; - - /* malloc a new buffer, in case gss_release_buffer doesn't work as - expected */ - *to = malloc(enc.length); - if(!*to) - return -1; - memcpy(*to, enc.value, enc.length); - len = curlx_uztosi(enc.length); - gss_release_buffer(&min, &enc); - return len; -} - -static int -krb5_auth(void *app_data, struct connectdata *conn) -{ - int ret = AUTH_OK; - char *p; - const char *host = conn->host.name; - ssize_t nread; - curl_socklen_t l = sizeof(conn->local_addr); - struct SessionHandle *data = conn->data; - CURLcode result; - const char *service = "ftp", *srv_host = "host"; - gss_buffer_desc input_buffer, output_buffer, _gssresp, *gssresp; - OM_uint32 maj, min; - gss_name_t gssname; - gss_ctx_id_t *context = app_data; - struct gss_channel_bindings_struct chan; - size_t base64_sz = 0; - - if(getsockname(conn->sock[FIRSTSOCKET], - (struct sockaddr *)LOCAL_ADDR, &l) < 0) - perror("getsockname()"); - - chan.initiator_addrtype = GSS_C_AF_INET; - chan.initiator_address.length = l - 4; - chan.initiator_address.value = - &((struct sockaddr_in *)LOCAL_ADDR)->sin_addr.s_addr; - chan.acceptor_addrtype = GSS_C_AF_INET; - chan.acceptor_address.length = l - 4; - chan.acceptor_address.value = - &((struct sockaddr_in *)REMOTE_ADDR)->sin_addr.s_addr; - chan.application_data.length = 0; - chan.application_data.value = NULL; - - /* this loop will execute twice (once for service, once for host) */ - for(;;) { - /* this really shouldn't be repeated here, but can't help it */ - if(service == srv_host) { - result = Curl_ftpsendf(conn, "AUTH GSSAPI"); - - if(result) - return -2; - if(Curl_GetFTPResponse(&nread, conn, NULL)) - return -1; - - if(data->state.buffer[0] != '3') - return -1; - } - - input_buffer.value = data->state.buffer; - input_buffer.length = snprintf(input_buffer.value, BUFSIZE, "%s@%s", - service, host); - maj = gss_import_name(&min, &input_buffer, GSS_C_NT_HOSTBASED_SERVICE, - &gssname); - if(maj != GSS_S_COMPLETE) { - gss_release_name(&min, &gssname); - if(service == srv_host) { - Curl_failf(data, "Error importing service name %s", - input_buffer.value); - return AUTH_ERROR; - } - service = srv_host; - continue; - } - /* We pass NULL as |output_name_type| to avoid a leak. */ - gss_display_name(&min, gssname, &output_buffer, NULL); - Curl_infof(data, "Trying against %s\n", output_buffer.value); - gssresp = GSS_C_NO_BUFFER; - *context = GSS_C_NO_CONTEXT; - - do { - /* Release the buffer at each iteration to avoid leaking: the first time - we are releasing the memory from gss_display_name. The last item is - taken care by a final gss_release_buffer. */ - gss_release_buffer(&min, &output_buffer); - ret = AUTH_OK; - maj = Curl_gss_init_sec_context(data, - &min, - context, - gssname, - &Curl_krb5_mech_oid, - &chan, - gssresp, - &output_buffer, - NULL); - - if(gssresp) { - free(_gssresp.value); - gssresp = NULL; - } - - if(GSS_ERROR(maj)) { - Curl_infof(data, "Error creating security context\n"); - ret = AUTH_ERROR; - break; - } - - if(output_buffer.length != 0) { - result = Curl_base64_encode(data, (char *)output_buffer.value, - output_buffer.length, &p, &base64_sz); - if(result) { - Curl_infof(data,"base64-encoding: %s\n", curl_easy_strerror(result)); - ret = AUTH_CONTINUE; - break; - } - - result = Curl_ftpsendf(conn, "ADAT %s", p); - - free(p); - - if(result) { - ret = -2; - break; - } - - if(Curl_GetFTPResponse(&nread, conn, NULL)) { - ret = -1; - break; - } - - if(data->state.buffer[0] != '2' && data->state.buffer[0] != '3') { - Curl_infof(data, "Server didn't accept auth data\n"); - ret = AUTH_ERROR; - break; - } - - p = data->state.buffer + 4; - p = strstr(p, "ADAT="); - if(p) { - result = Curl_base64_decode(p + 5, - (unsigned char **)&_gssresp.value, - &_gssresp.length); - if(result) { - Curl_failf(data,"base64-decoding: %s", curl_easy_strerror(result)); - ret = AUTH_CONTINUE; - break; - } - } - - gssresp = &_gssresp; - } - } while(maj == GSS_S_CONTINUE_NEEDED); - - gss_release_name(&min, &gssname); - gss_release_buffer(&min, &output_buffer); - - if(gssresp) - free(_gssresp.value); - - if(ret == AUTH_OK || service == srv_host) - return ret; - - service = srv_host; - } - return ret; -} - -static void krb5_end(void *app_data) -{ - OM_uint32 min; - gss_ctx_id_t *context = app_data; - if(*context != GSS_C_NO_CONTEXT) { -#ifdef DEBUGBUILD - OM_uint32 maj = -#endif - gss_delete_sec_context(&min, context, GSS_C_NO_BUFFER); - DEBUGASSERT(maj == GSS_S_COMPLETE); - } -} - -struct Curl_sec_client_mech Curl_krb5_client_mech = { - "GSSAPI", - sizeof(gss_ctx_id_t), - krb5_init, - krb5_auth, - krb5_end, - krb5_check_prot, - krb5_overhead, - krb5_encode, - krb5_decode -}; - -#endif /* HAVE_GSSAPI */ -#endif /* CURL_DISABLE_FTP */ |